Principles of Foundation Engineering, SI Edition
8th Edition
ISBN: 9781305723351
Author: Braja M. Das
Publisher: Cengage Learning US
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Chapter 2, Problem 2.6P
To determine
Classify the soils by using AASHTO soil classification system.
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Following details regarding the particle size distribution and other index properties pertinent to the classification of soil. Choose three soils and classify each soil according to USCS and AASHTO classification systems. When necessary, assume Cu = 4.48 and Cc = 1.22.
The laboratory test results of six soils are given in the following table. Classify the
soils by the AASHTO Soil Classification System and give the group indices.
Sieve Analysis-Percent Passing
Soil
Sieve No.
C D
A
в
F
4
100
100
95
95
100
100
10
95
80
80
90
94
94
40
82
61
54
79
76
86
200
65
55
8
64
33
76
Liquid limit
42
38
NP*
35
38
52
Plastic limit
26
25
NP
26
25
28
*NP = nonplastic
2.6 The laboratory test results of six soils are given in the following table. Classify the
soils by the AASHTO Soil Classification System and give the group indices.
Sieve Analysis-Percent Passing
Soil
Sieve No.
C D
A
B
4
100
95
100
95
80
95
100
94
100
10
80
90
94
40
82
61
54
79
76
86
200
33
65
42
55
38
25
64
76
Liquid limit
Plastic limit
NP
35
38
52
26
NP
26
25
28
*NP = nonplastic
Chapter 2 Solutions
Principles of Foundation Engineering, SI Edition
Ch. 2 - Prob. 2.1PCh. 2 - Prob. 2.2PCh. 2 - Prob. 2.3PCh. 2 - Prob. 2.4PCh. 2 - Prob. 2.5PCh. 2 - Prob. 2.6PCh. 2 - Prob. 2.7PCh. 2 - Prob. 2.8PCh. 2 - Prob. 2.9PCh. 2 - Prob. 2.10P
Ch. 2 - Prob. 2.11PCh. 2 - Prob. 2.12PCh. 2 - Prob. 2.13PCh. 2 - Prob. 2.14PCh. 2 - Prob. 2.15PCh. 2 - For a normally consolidated soil, the following is...Ch. 2 - Prob. 2.17PCh. 2 - Prob. 2.18PCh. 2 - Prob. 2.19PCh. 2 - Prob. 2.20PCh. 2 - Prob. 2.21PCh. 2 - Prob. 2.22PCh. 2 - Prob. 2.23PCh. 2 - Prob. 2.24PCh. 2 - Prob. 2.25PCh. 2 - Prob. 2.26PCh. 2 - Prob. 2.27P
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- Classify the following soils by using Unified Soil Classification System. Give the group symbols and the group names.arrow_forwardThe sieve analysis of four soils and the liquid and plastic limits of the fraction passing through the No. 40 sieve are given below. Classify the soils using the AASHTO classification system and give the group indexes. Comment on the suitability of the soils as subgrade material. Sieve analysis (percent finer) Soil No. No. 10 No. 40 No. 200 Liquid limit Plastic limit 100 80 58 30 20 2 95 60 20 3 90 76 34 37 25 4 48 28 NP [Das B. M. Principles of Geotechnical Engineering (7E), pp. 101, 102, 112]arrow_forwardProblem 4 Classify the following soils by AASHTO classification system. Give group index for each soil. Sieve Analysis- Percent Finer # 40 Soil LL PL # 10 # 200 98 80 72 52 31 90 74 58 38 26arrow_forward
- Classify all the soils in 5.8 using unified soil classification system. Give group symbols and the group namesarrow_forwardClassify the following soils by the AASHTO classification system. Give the group index for each soil. Sieve analysis- Percent finer Liquid limit Plasticity index Soil No. 10 No. 40 No. 200 A 98 80 72 52 21 90 74 58 38 12 84 71 64 41 14 D 100 78 82 32 12 E 80 68 48 30 11 © Cengage Learning 2014arrow_forward1 The sieve analysis of four soils and the liquid and plastic limits of the fraction passing through the No. 40 sieve are given below. Classify the soils using the AASHTO classification system and give the group indexes. Comment on the suitability of the soils as subgrade material. Sieve analysis (percent finer) Soil No. No. 10 No. 40 No. 200 Liquid limit Plastic limit 100 80 58 30 20 2 95 60 20 90 76 34 37 25 4 48 28 6 NParrow_forward
- The result of particle-size distribution of a soil sample is recorded below. Using the AASHTO classification table, determine the following: 1. Classification of soil A. 2. Classification of soil B. 3. Classification of soil C.arrow_forward2. Classify the following soils by the AASHTO classification system. Give the group index for each soil. Show the step-by-step process of classifying each soil using the AASHTO table. Soil A B C Sieve analysis- Percent finer No. 40 No. 10 90 86 42 92 90 28 68 48 No. 200 32 8 12 30 22 Liquid 28 NP 18 42 Plasticity index 9 in oarrow_forward1. Classify the following soils by using the USDA's textural classification chart. Soil Particle-size Distribution (%) A B C D E Gravel 0 0 10 20 15 Sand 25 5 20 40 32 Silt 65 7 35 22 25 Clay 10 88 30 18 28arrow_forward
- Classify the following soils by the AASHTO classification system. Give the group index for each soil. Complete solution please with the tables and graphs.arrow_forwardRepeat Problem 2.11 with the following data. 2.11 The grain-size characteristics of a soil are given in the following table. a. Draw the grain-size distribution curve. b. Determine the percentages of gravel, sand, silt, and clay according to the MIT system. c. Repeat Part b using the USDA system. d. Repeat Part b using the AASHTO system.arrow_forwardThe grain-size characteristics of a soil are given in the following table. a. Draw the grain-size distribution curve. b. Determine the percentages of gravel, sand, silt, and clay according to the MIT system. c. Repeat Part b using the USDA system. d. Repeat Part b using the AASHTO system.arrow_forward
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